BMW M3 Forum (E90 E92) - View Single Post - Aftermarket cats and RPi race system

bigjae1976 · 08-07-2009, 01:16 AM

I'm really leaning towards the RPi race system (exhaust and xpipe).

What are my options for cats? I don't have any emissions testing requirements but I want cats to eliminate the nasty smell from not having cats.

I have the magnaflow spun cats on my E46 which seem to work well enough in achieving what I want.

Anyone know if these spun cats will reduce my HP gains significantly if installed in an RPi race setup?

Or

Does is there a better option that doesn't cost an arm and a leg?

Here is a link to the spun cats...

http://www.jegs.com/p/Magnaflow/Magn...63223/10002/-1

08-07-2009, 01:16 AM	#1
bigjae1976 Major General 1571 Rep 8,076 Posts Drives: 11 E90 M3 Individual Join Date: Mar 2006 Location: Houston, TX iTrader: (22) Garage List 2004 BMW M3 [4.50] 2011 BMW E90 M3 [5.25] 2013 BMW 328i [5.00]	Aftermarket cats and RPi race system - options I'm really leaning towards the RPi race system (exhaust and xpipe). What are my options for cats? I don't have any emissions testing requirements but I want cats to eliminate the nasty smell from not having cats. I have the magnaflow spun cats on my E46 which seem to work well enough in achieving what I want. Anyone know if these spun cats will reduce my HP gains significantly if installed in an RPi race setup? Or Does is there a better option that doesn't cost an arm and a leg? Here is a link to the spun cats... http://www.jegs.com/p/Magnaflow/Magn...63223/10002/-1 __________________ 2018 F30 320iX Melbourne Red 2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue
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